iPhone Sketching Post-its
Apps-on is another great tool for sketching out your iPhone ideas. It’s true to size and shape to the iPhone 4 and comes with a dotted grid system that disappears when scanned or photocopied.
iPad Templates and Stencils
While consumers await the arrival of the first generation iPad on April 3, designers and developers have been working on apps in anticipation. Here’s a list of free iPad templates and stencils that we’ve been using at Ideacodes to get you started: iPad Stencil for Omnigraffle by iA Contains backgrounds, title bars, buttons, selectors, and ...
Sketch Templates and Stencils for UI design
Good collection of printable sketch templates for wireframing at Geekchix.org. Particularly love the UI Stencils.